foreach ($obj as $row) {
    echo '<img src="https://secure.runescape.com/m=avatar-rs/'. preg_replace("/ /","+",$row["name"]) .'/chat.png"/> <br />';
}

foreach ($obj as $row) {
    $url = 'https://secure.runescape.com/m=avatar-rs/'. preg_replace("/ /","+",$row["name"]) .'/chat.png';
    copy($url,''. preg_replace("/ /","+",$row["name"]) .'.png');
}